Rolling mill



June17,193o. Q ASBECK 1,764,598

ROLLING MILL Filed July 2,1 1926 /nvenon Patented June. .17, 1930 ITEDSTATES- jaar GUSTAV ASIBECK, F DUSSELDORF-RATE, GERMANY :ROLLING MILLApplication vtiled. July 21,' 1926, Serial No. 123,879, and in Germany.Tune 8, 1926.

My invention relates to improvementsin rolling mills, and morepartlcularly in mills comprising one set or a plurality of sets of rollslocated in the direction of the movement of the blank one behind theother. Rolling mills of this type are used for example for reducingpipes.A The object of the improvements is to provide a mill of'this typewhlch is simple in construction, and in which the D operative parts arereadily accessible. With' this object in view my invention consists inproviding a both sets of rolls, which driving member 1s located betweenthe'said sets and is connected i with the rolls by suitable intermediatedrlvingmembers.

For the purpose lof explaining the invention and example embodying thesame has 'been shown in the accompanying drawings, in which the samereference characters have been usedi in all the views to indicatecorresponding parts. In said drawings,

Fig. 1 is a sectional elevation showing a rolling mill comprising twosets of rolls and a.

i driving member formed with hyperbolic gear wheels and located betweenthe said'sets,y q

Fig. 2 is an elevation looking from' the left in Fig. 1.

In the example shown in Figs. 1 and 2 the i rolling mill comprises aframe t having two 'sets of rolls a and b mounted therein on shaftsr a1and b1. As shown in Fig. 1 each set comprises four rolls and shafts, andthe rolls and shafts of the setsgare displacedfwith relation to eachother at angles of The frame t comprises a median substantiallycylindrical portlon t1 on which a cylindrical driving member c isrotatably mounted. To the said driving member a spur gearing g is fixedwhich is in driving engagement with a gear wheel 8 keyed to a main4driving shaft 1'. Further, to opposite ends of the driving member 0,hyperbolic gear wheels or the like (l ande are secured which are in meshwith pinions f1 and f2 keyed to the shafts@1 and b1 respectively. Asappears from Fig. 2, the shafts a1 and b1 and pinions f1 and fzare notdisposed with their axes in radial planes including the axis of theblankbeing rolled, Ybut they are spaced from the said planes and ommondriving member for and the gear wheels d, f1 and e, f2.

-row and wit-h the centers of the passes of the parallel theretoaccording to the radii of the rolls.' Fig. 2 also shows the relativeposition of the pinions f1 and f2, the pinions f2 and rolls connected.therewith belng shown in dotted lines.

The cylindrical portion t1 of' the frame includes a bearing for a guideh, A similar guide z' is provided at the right hand part of the frame.At the ends the fram-e t is closed by heads 7c and m. After removing thesaid heads the rolls are readily accessible.

l/Vhen imparting rotary movement to the driving i member c the rolls'are driven through the intermediary of the gear wheel g Whileindescribing the invention 4reference has beenl m-ade to a particularexample embodying the same I wish it 'to be understood that my inventionis not limited to the construction shown in the drawings, but that oneor more sets of rolls can be arranged, further that, instead of 4 rolls,shown inthe drawings, also 2, 3, 5 or more rolls in one set can beapplied, and that various changes may be made in the general arrangementof the apparatus and the construction of its parts without departingfrom the invention.

I claim:

1. In a rolling' mill, a set of work-shaping rolls grouped to form apassfor the work and comprising a plurality of airs of rolls with the centerof the pass o the rolls in each pair rotating in a common planeintersecting the axis of the work at an angle with respect to the planeof rotation of the other rolls, each roll having an axis positioned outl of radialrelation to the work pass and provided with a gear, and acommon driving gear meshed wit-h the gears on the roll axes androtatably mounted in concentric relation to the work pass.

2. In a rolling mill, work-shaping rolls mounted and arranged radiallyin a circular rolls coincident, each of said rolls having an axis andthe axes of said rolls extending in relatively opposite directions withrespect to the work' pass and out of radial alignment therewith, leachroll axis being provided with a gear, and a common driving gear meshed lwith the gears on said axes and rotating in concentric relation to thework pass. v 3. In a rollin mill, spaced sets of workshapin rolls, t erolls in each set being 5 groupe to form a. pass for the work with i thecenters of the asses of the rolls coincident and each roll aving an axispositioned out of radial relation to the Work pass and provided with agear, a driving member romtatably mounted `between the roll sets forrotation about ari-axis coinciding with thel work pass, and spaceddriving gears of relativel dierent diameters carried by said mem er andrespectively directly meshed with the gears on the axes of therespective sets of shapin rolls to drive the rolls in each set at uniorm speed and at a relatively dierent speed with respect to the rolls inthe other set. a 4. In a rollin mill, spaced sets of work shaping rolls,t e rolls in each set being grouped to form a pass for the work, arotatably supported power transmitting memloer, and direct drivingconnections between said member and the rolls in each set to drive therolls in each set at a uniform speed and Vat a relatively diierent speedwith respect to the rolls in the other set. In testimony whereof lhereunto affix my signature.

GUSTAV ASBECKe

